Panel



FIG. 1 is a top, right perspective view of the panel of the present invention;

FIG. 2 is a bottom right perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a right side view thereof; and,

FIG. 5 is a left side view thereof.

The broken lines showing the rear in FIGS. 1, 2, 4 and 5 are included to show portions that form no part of the claimed design. 

CLAIM The ornamental design for a panel, as shown and described. 